Finding the Fourth Proportional to 321,293.19, 481,173.70 and 186,071.55
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Solution
The fourth proportional to 321,293.19, 481,173.70 and 186,071.55 is: 278,663.66
Step by Step Solution
- Step 1: Write the proportion equation
321,293.19 : 481,173.70 = 186,071.55 : x - Step 2: Convert to fraction form
321,293.19/481,173.70 = 186,071.55/x - Step 3: Cross multiply
321,293.19x = 481,173.70 × 186,071.55 - Step 4: Simplify right side
321,293.19x = 89,532,735,713.06 - Step 5: Solve for x
x = 89,532,735,713.06/321,293.19 - Step 6: Final answer
x = 278,663.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.